kt-template-online-api/test/admin/network-management/network-agent-mqtt.service.spec.ts

880 lines
30 KiB
TypeScript

import { EventEmitter } from 'node:events';
import type { ConfigService } from '@nestjs/config';
import type { DataSource, EntityManager, Repository } from 'typeorm';
import type { IClientOptions, MqttClient } from 'mqtt';
import { KtDateTime } from '../../../src/common';
import {
NetworkAgentMqttService,
type NetworkMqttClientFactory,
} from '../../../src/modules/admin/platform-config/network-management/network-agent-mqtt.service';
import { NetworkAgentState } from '../../../src/modules/admin/platform-config/network-management/network-agent-state.entity';
import { NetworkEndpointHistory } from '../../../src/modules/admin/platform-config/network-management/network-endpoint-history.entity';
import type { NetworkManagementEventStreamService } from '../../../src/modules/admin/platform-config/network-management/network-management-event-stream.service';
import { NetworkPortForward } from '../../../src/modules/admin/platform-config/network-management/network-management.entity';
import {
buildDesiredSnapshot,
desiredSnapshotDigest,
} from '../../../src/modules/admin/platform-config/network-management/network-management.types';
type MqttHarness = {
client: MqttClient & EventEmitter;
clientOptions: () => IClientOptions;
histories: NetworkEndpointHistory[];
mappingSave: jest.Mock;
publishCommitted: jest.Mock;
mapping: NetworkPortForward;
publishCallback: () => (error?: Error) => void;
requestDdnsReconcile: jest.Mock;
service: NetworkAgentMqttService;
state: NetworkAgentState;
stateSave: jest.Mock;
transactionCalls: () => number;
};
/** Creates a fake MQTT client plus in-memory TypeORM state for bridge tests. */
function createHarness(): MqttHarness {
const state = Object.assign(new NetworkAgentState(), {
agentId: 'nas-main',
appliedRevision: '0',
desiredIssuedAt: new KtDateTime('2026-07-22T01:02:03.000Z'),
desiredRevision: '7',
online: false,
publishedRevision: '0',
targetIpv4: '192.168.31.224',
});
const mapping = Object.assign(new NetworkPortForward(), {
activeKey: 'udp:9000',
currentObservedAt: null,
currentPublicIpv4: null,
currentPublicPort: null,
currentValidUntil: null,
desiredIssuedAt: state.desiredIssuedAt,
desiredPresence: 'present',
desiredRevision: '7',
externalPort: 9000,
id: '100',
internalPort: 9000,
isDeleted: false,
keeperDesiredEnabled: true,
keeperStatus: 'starting',
name: 'rule',
protocol: 'udp',
reportedRevision: '0',
syncStatus: 'pending',
targetIpv4: '192.168.31.224',
});
const histories: NetworkEndpointHistory[] = [];
const stateSave = jest.fn(async (value) => Object.assign(state, value));
const stateRepository = {
findOne: async () => state,
save: stateSave,
} as unknown as Repository<NetworkAgentState>;
const mappingSave = jest.fn(async (value) => Object.assign(mapping, value));
const mappingRepository = {
find: async () => (mapping.isDeleted ? [] : [mapping]),
findOne: async ({ where }) => (where.id === mapping.id ? mapping : null),
save: mappingSave,
} as unknown as Repository<NetworkPortForward>;
const historyRepository = {
create: (input) => Object.assign(new NetworkEndpointHistory(), input),
findOne: async ({ where }) =>
histories.find((item) => item.eventId === where.eventId) || null,
save: async (value) => {
histories.push(value);
return value;
},
} as unknown as Repository<NetworkEndpointHistory>;
const manager = {
getRepository: (entity) => {
if (entity === NetworkAgentState) return stateRepository;
if (entity === NetworkPortForward) return mappingRepository;
if (entity === NetworkEndpointHistory) return historyRepository;
throw new Error('unexpected repository');
},
} as unknown as EntityManager;
let transactionCallCount = 0;
const dataSource = {
getRepository: manager.getRepository.bind(manager),
transaction: async (work) => {
transactionCallCount += 1;
return await work(manager);
},
} as unknown as DataSource;
const configService = {
get: (key) => {
const values = {
NETWORK_AGENT_ID: 'nas-main',
NETWORK_AGENT_MQTT_RETRY_MS: '60000',
NETWORK_AGENT_MQTT_URL: 'mqtt://broker.test:1883',
};
return values[key];
},
} as ConfigService;
const client = new EventEmitter() as MqttClient & EventEmitter;
client.connected = true;
let options: IClientOptions;
let publishAck: (error?: Error) => void = () => undefined;
client.subscribe = jest.fn((_topics, optionsOrCallback, callback) => {
const done =
typeof optionsOrCallback === 'function' ? optionsOrCallback : callback;
done?.(undefined, []);
return client;
}) as unknown as MqttClient['subscribe'];
client.publish = jest.fn((_topic, _payload, _options, callback) => {
publishAck = callback as (error?: Error) => void;
return client;
}) as unknown as MqttClient['publish'];
client.reconnect = jest.fn(() => client) as MqttClient['reconnect'];
client.end = jest.fn((_force, _opts, callback) => {
callback?.();
return client;
}) as unknown as MqttClient['end'];
const factory: NetworkMqttClientFactory = (_url, clientOptions) => {
options = clientOptions;
return client;
};
const publishCommitted = jest.fn();
const eventStream = {
publishCommitted,
} as unknown as NetworkManagementEventStreamService;
const requestDdnsReconcile = jest.fn();
const service = new NetworkAgentMqttService(
configService,
dataSource,
eventStream,
factory,
{ requestReconcile: requestDdnsReconcile } as never,
);
return {
client,
clientOptions: () => options,
histories,
mappingSave,
mapping,
publishCallback: () => publishAck,
publishCommitted,
requestDdnsReconcile,
service,
state,
stateSave,
transactionCalls: () => transactionCallCount,
};
}
/** Waits for promise continuations scheduled by the MQTT bridge. */
async function flushPromises(): Promise<void> {
await new Promise<void>((resolve) => setImmediate(resolve));
}
/** Mirrors MQTT.js by emitting callback errors through the client error event. */
function createProtocolAck(
client: MqttClient & EventEmitter,
): jest.Mock<void, [Error | number, number?]> {
return jest.fn((error: Error | number) => {
if (error instanceof Error) client.emit('error', error);
});
}
/** Builds one valid full reported snapshot. */
function reported(
harness: MqttHarness,
revision: number,
overrides: Record<string, unknown> = {},
) {
const digest =
revision === Number(harness.state.desiredRevision)
? desiredSnapshotDigest(
buildDesiredSnapshot(harness.state, [harness.mapping]),
)
: 'd'.repeat(64);
return Buffer.from(
JSON.stringify({
agentId: 'nas-main',
appliedRevision: revision,
desiredDigest: digest,
helperAppliedRevision: revision,
helperDigest: 'e'.repeat(64),
helperStatus: 'confirmed',
mappings: [
{
currentEndpoint: {
observedAt: '2026-07-22T01:02:04.000Z',
publicIpv4: '8.8.8.8',
publicPort: 45000,
validUntil: '2026-07-22T01:04:04.000Z',
},
desiredState: harness.mapping.desiredPresence,
id: '100',
keeperDesiredEnabled: harness.mapping.keeperDesiredEnabled,
keeperStatus: 'active',
lastObservedEndpoint: {
observedAt: '2026-07-22T01:02:04.000Z',
publicIpv4: '8.8.8.8',
publicPort: 45000,
validUntil: '2026-07-22T01:04:04.000Z',
},
revision,
routePresent: true,
routerPresent: true,
syncStatus: 'synced',
...overrides,
},
],
reportedAt: '2026-07-22T01:02:04.000Z',
schemaVersion: 1,
}),
);
}
describe('NetworkAgentMqttService', () => {
it('delays inbound QoS 1 acknowledgement until DB consumption resolves', async () => {
const harness = createHarness();
let complete: () => void = () => undefined;
jest.spyOn(harness.service, 'consumeMessage').mockImplementation(
async () =>
await new Promise<void>((resolve) => {
complete = resolve;
}),
);
harness.service.onModuleInit();
const ack = jest.fn();
harness
.clientOptions()
.customHandleAcks?.(
'kt/network/v1/agents/nas-main/reported',
Buffer.from('{}'),
{ qos: 1 },
ack,
);
await flushPromises();
expect(ack).not.toHaveBeenCalled();
complete();
await flushPromises();
expect(ack).toHaveBeenCalledWith(0);
await harness.service.onModuleDestroy();
});
it('forces one persistent-session reconnect after a transient inbound transaction failure', async () => {
const harness = createHarness();
jest
.spyOn(harness.service, 'consumeMessage')
.mockRejectedValueOnce(new Error('database unavailable'));
harness.service.onModuleInit();
const ack = createProtocolAck(harness.client);
harness
.clientOptions()
.customHandleAcks?.(
'kt/network/v1/agents/nas-main/reported',
Buffer.from('{}'),
{ qos: 1 },
ack,
);
await flushPromises();
expect(ack).toHaveBeenCalledWith(expect.any(Error));
expect(harness.client.end).toHaveBeenCalledWith(
true,
{},
expect.any(Function),
);
expect(harness.client.reconnect).toHaveBeenCalledTimes(1);
expect(harness.clientOptions()).toMatchObject({
clean: false,
clientId: 'kt-template-online-api-network-nas-main',
});
harness.client.emit('error', new Error('duplicate recovery signal'));
expect(harness.client.end).toHaveBeenCalledTimes(1);
expect(harness.client.reconnect).toHaveBeenCalledTimes(1);
await harness.service.onModuleDestroy();
});
it('acknowledges and drops permanent malformed messages without reconnecting', async () => {
const harness = createHarness();
harness.service.onModuleInit();
const ack = createProtocolAck(harness.client);
harness
.clientOptions()
.customHandleAcks?.(
'kt/network/v1/agents/nas-main/reported',
Buffer.from('{'),
{ qos: 1 },
ack,
);
await flushPromises();
expect(ack).toHaveBeenCalledWith(0);
expect(harness.client.end).not.toHaveBeenCalled();
expect(harness.client.reconnect).not.toHaveBeenCalled();
await harness.service.onModuleDestroy();
});
it('recovers from SUBACK failure before restoring exact subscriptions and forced retained desired publication', async () => {
const harness = createHarness();
harness.state.publishedRevision = harness.state.desiredRevision;
const subscribe = harness.client.subscribe as jest.Mock;
subscribe
.mockImplementationOnce((_topics, optionsOrCallback, callback) => {
const done =
typeof optionsOrCallback === 'function'
? optionsOrCallback
: callback;
done?.(new Error('SUBACK rejected'));
return harness.client;
})
.mockImplementationOnce((_topics, optionsOrCallback, callback) => {
const done =
typeof optionsOrCallback === 'function'
? optionsOrCallback
: callback;
done?.(undefined, []);
return harness.client;
});
const expectedTopics = {
'kt/network/v1/agents/nas-main/events': { qos: 1 },
'kt/network/v1/agents/nas-main/reported': { qos: 1 },
'kt/network/v1/agents/nas-main/status': { qos: 1 },
};
harness.service.onModuleInit();
harness.client.emit('connect');
expect(subscribe).toHaveBeenNthCalledWith(
1,
expectedTopics,
expect.any(Function),
);
expect(harness.client.end).toHaveBeenCalledWith(
true,
{},
expect.any(Function),
);
expect(harness.client.reconnect).toHaveBeenCalledTimes(1);
expect(harness.client.publish).not.toHaveBeenCalled();
harness.client.emit('connect');
await flushPromises();
expect(subscribe).toHaveBeenNthCalledWith(
2,
expectedTopics,
expect.any(Function),
);
expect(harness.client.publish).toHaveBeenCalledWith(
'kt/network/v1/agents/nas-main/desired',
expect.any(Buffer),
{ qos: 1, retain: true },
expect.any(Function),
);
harness.publishCallback()();
await flushPromises();
await harness.service.onModuleDestroy();
});
it('does not reconnect a recovery that finishes after module shutdown', async () => {
const harness = createHarness();
let finishRecovery: () => void = () => undefined;
(harness.client.end as jest.Mock).mockImplementation(
(force, _opts, callback) => {
if (force) finishRecovery = callback;
else callback?.();
return harness.client;
},
);
harness.service.onModuleInit();
harness.client.emit('error', new Error('transient protocol failure'));
expect(harness.client.end).toHaveBeenNthCalledWith(
1,
true,
{},
expect.any(Function),
);
await harness.service.onModuleDestroy();
finishRecovery();
expect(harness.client.reconnect).not.toHaveBeenCalled();
});
it('uses a persistent MQTT 5 session and advances published revision only after PUBACK', async () => {
const harness = createHarness();
harness.service.onModuleInit();
harness.client.emit('connect');
await flushPromises();
expect(harness.clientOptions()).toMatchObject({
clean: false,
clientId: 'kt-template-online-api-network-nas-main',
protocolVersion: 5,
});
expect(harness.client.publish).toHaveBeenCalledWith(
'kt/network/v1/agents/nas-main/desired',
expect.any(Buffer),
{ qos: 1, retain: true },
expect.any(Function),
);
expect(harness.state.publishedRevision).toBe('0');
expect(harness.transactionCalls()).toBe(1);
harness.publishCallback()();
await flushPromises();
expect(harness.state.publishedRevision).toBe('7');
expect(harness.transactionCalls()).toBe(2);
await harness.service.onModuleDestroy();
});
it('defers failed publications to the bounded retry timer instead of spinning', async () => {
const harness = createHarness();
harness.service.onModuleInit();
harness.service.requestDesiredPublish();
await flushPromises();
expect(harness.client.publish).toHaveBeenCalledTimes(1);
harness.publishCallback()(new Error('broker unavailable'));
await flushPromises();
await flushPromises();
expect(harness.client.publish).toHaveBeenCalledTimes(1);
expect(harness.state.publishedRevision).toBe('0');
await harness.service.onModuleDestroy();
});
it('protects newer desired state from stale reported data and refreshes same-revision leases', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
await harness.service.consumeMessage(topic, reported(harness, 7));
expect(harness.mapping.currentPublicPort).toBe(45000);
harness.mapping.desiredRevision = '8';
harness.mapping.syncStatus = 'pending';
harness.state.desiredRevision = '8';
await harness.service.consumeMessage(
topic,
reported(harness, 7, {
currentEndpoint: {
observedAt: '2026-07-22T01:03:04.000Z',
publicIpv4: '8.8.4.4',
publicPort: 49999,
validUntil: '2026-07-22T01:05:04.000Z',
},
}),
);
expect(harness.mapping.currentPublicPort).toBe(45000);
expect(harness.mapping.syncStatus).toBe('pending');
await harness.service.consumeMessage(
topic,
reported(harness, 8, {
currentEndpoint: {
observedAt: '2026-07-22T01:03:04.000Z',
publicIpv4: '8.8.8.8',
publicPort: 45000,
validUntil: '2026-07-22T01:06:04.000Z',
},
}),
);
expect(harness.mapping.currentValidUntil?.toISOString()).toBe(
'2026-07-22T01:06:04.000Z',
);
});
it('publishes one Admin event only after a reported transaction changes visible state', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
const payload = reported(harness, 7);
harness.publishCommitted.mockImplementation(() => {
expect(harness.mapping.syncStatus).toBe('synced');
expect(harness.state.appliedRevision).toBe('7');
});
await harness.service.consumeMessage(topic, payload);
const mappingSavesAfterFirstReport = harness.mappingSave.mock.calls.length;
const stateSavesAfterFirstReport = harness.stateSave.mock.calls.length;
await harness.service.consumeMessage(topic, payload);
expect(harness.mappingSave).toHaveBeenCalledTimes(
mappingSavesAfterFirstReport,
);
expect(harness.stateSave).toHaveBeenCalledTimes(stateSavesAfterFirstReport);
expect(harness.publishCommitted).toHaveBeenCalledTimes(1);
expect(harness.publishCommitted).toHaveBeenCalledWith('reported');
expect(harness.requestDdnsReconcile).toHaveBeenCalledTimes(1);
});
/** Proves lease renewal is persisted without turning timestamps into page reloads. */
it('suppresses Admin events for reported lease-only timestamp renewal', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
await harness.service.consumeMessage(topic, reported(harness, 7));
harness.publishCommitted.mockClear();
harness.requestDdnsReconcile.mockClear();
const savesBeforeRenewal = harness.mappingSave.mock.calls.length;
await harness.service.consumeMessage(
topic,
reported(harness, 7, {
currentEndpoint: {
observedAt: '2026-07-22T01:03:04.000Z',
publicIpv4: '8.8.8.8',
publicPort: 45000,
validUntil: '2026-07-22T01:05:04.000Z',
},
lastObservedEndpoint: {
observedAt: '2026-07-22T01:03:04.000Z',
publicIpv4: '8.8.8.8',
publicPort: 45000,
validUntil: '2026-07-22T01:05:04.000Z',
},
}),
);
expect(harness.mapping.currentValidUntil?.toISOString()).toBe(
'2026-07-22T01:05:04.000Z',
);
expect(harness.mapping.lastObservedAt?.toISOString()).toBe(
'2026-07-22T01:03:04.000Z',
);
expect(harness.mappingSave).toHaveBeenCalledTimes(savesBeforeRenewal + 1);
expect(harness.publishCommitted).not.toHaveBeenCalled();
expect(harness.requestDdnsReconcile).not.toHaveBeenCalled();
await harness.service.consumeMessage(
topic,
reported(harness, 7, {
currentEndpoint: {
observedAt: '2026-07-22T01:04:04.000Z',
publicIpv4: '8.8.8.8',
publicPort: 45001,
validUntil: '2026-07-22T01:06:04.000Z',
},
}),
);
expect(harness.publishCommitted).toHaveBeenCalledTimes(1);
expect(harness.publishCommitted).toHaveBeenCalledWith('reported');
expect(harness.requestDdnsReconcile).not.toHaveBeenCalled();
});
it('does not let an out-of-order same-revision withdrawal erase a newer lease', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
await harness.service.consumeMessage(topic, reported(harness, 7));
const staleWithdrawal = JSON.parse(reported(harness, 7).toString('utf8'));
delete staleWithdrawal.mappings[0].currentEndpoint;
staleWithdrawal.reportedAt = '2026-07-22T01:02:03.000Z';
await harness.service.consumeMessage(
topic,
Buffer.from(JSON.stringify(staleWithdrawal)),
);
expect(harness.mapping.currentPublicPort).toBe(45000);
});
it('ignores lower applied revisions and rejects a wrong digest for the current revision', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
await harness.service.consumeMessage(topic, reported(harness, 7));
const originalPort = harness.mapping.currentPublicPort;
await harness.service.consumeMessage(
topic,
reported(harness, 6, {
currentEndpoint: undefined,
errorCode: 'old_failure',
errorMessage: 'stale',
syncStatus: 'failed',
}),
);
expect(harness.mapping.currentPublicPort).toBe(originalPort);
expect(harness.mapping.lastErrorCode).toBeNull();
const wrongDigest = JSON.parse(reported(harness, 7).toString('utf8'));
wrongDigest.desiredDigest = 'f'.repeat(64);
await expect(
harness.service.consumeMessage(
topic,
Buffer.from(JSON.stringify(wrongDigest)),
),
).rejects.toThrow('digest');
});
it('rejects extra mapping IDs in a current full reported snapshot', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
const payload = JSON.parse(reported(harness, 7).toString('utf8'));
payload.mappings.push({
desiredState: 'absent',
id: '999',
keeperDesiredEnabled: false,
keeperStatus: 'disabled',
revision: 7,
routePresent: false,
routerPresent: false,
syncStatus: 'synced',
});
await expect(
harness.service.consumeMessage(
topic,
Buffer.from(JSON.stringify(payload)),
),
).rejects.toThrow('Unknown mapping');
});
it('rejects Agent Keeper intent that differs from the persisted desired state', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
harness.mapping.keeperDesiredEnabled = false;
const payload = JSON.parse(reported(harness, 7).toString('utf8'));
payload.mappings[0].keeperDesiredEnabled = true;
await expect(
harness.service.consumeMessage(
topic,
Buffer.from(JSON.stringify(payload)),
),
).rejects.toThrow('Keeper intent');
expect(harness.mapping.currentPublicIpv4).toBeNull();
});
it.each([
['unknown', 0, ''],
['failed', 8, 'e'.repeat(64)],
['confirmed', 7, 'e'.repeat(64)],
])(
'keeps a deletion tombstone when global helper state is not current (%s)',
async (helperStatus, helperAppliedRevision, helperDigest) => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
harness.mapping.desiredPresence = 'absent';
harness.mapping.desiredRevision = '8';
harness.mapping.keeperDesiredEnabled = false;
harness.mapping.syncStatus = 'deleting';
harness.state.desiredRevision = '8';
const payload = JSON.parse(
reported(harness, 8, {
currentEndpoint: undefined,
desiredState: 'absent',
keeperDesiredEnabled: false,
keeperStatus: 'disabled',
routePresent: false,
routerPresent: false,
}).toString('utf8'),
);
payload.helperAppliedRevision = helperAppliedRevision;
payload.helperDigest = helperDigest;
payload.helperStatus = helperStatus;
await harness.service.consumeMessage(
topic,
Buffer.from(JSON.stringify(payload)),
);
expect(harness.mapping.isDeleted).toBe(false);
expect(harness.mapping.activeKey).toBe('udp:9000');
expect(harness.state.desiredRevision).toBe('8');
},
);
it('finalizes deletion only with confirmed router, route, Keeper, helper, and endpoint absence', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/reported';
harness.mapping.desiredPresence = 'absent';
harness.mapping.desiredRevision = '8';
harness.mapping.keeperDesiredEnabled = false;
harness.mapping.syncStatus = 'deleting';
harness.state.desiredRevision = '8';
await harness.service.consumeMessage(
topic,
reported(harness, 8, {
currentEndpoint: undefined,
desiredState: 'absent',
keeperDesiredEnabled: false,
keeperStatus: 'disabled',
routePresent: false,
routerPresent: true,
syncStatus: 'deleting',
}),
);
expect(harness.mapping.isDeleted).toBe(false);
expect(harness.mapping.activeKey).toBe('udp:9000');
await harness.service.consumeMessage(
topic,
reported(harness, 8, {
currentEndpoint: undefined,
desiredState: 'absent',
keeperDesiredEnabled: false,
keeperStatus: 'disabled',
routePresent: false,
routerPresent: false,
}),
);
expect(harness.mapping.isDeleted).toBe(true);
expect(harness.mapping.activeKey).toBeNull();
expect(harness.state.desiredRevision).toBe('9');
await expect(
harness.service.consumeMessage(
topic,
reported(harness, 8, {
currentEndpoint: undefined,
desiredState: 'absent',
keeperDesiredEnabled: false,
keeperStatus: 'disabled',
routePresent: false,
routerPresent: false,
}),
),
).resolves.toBeUndefined();
});
it('appends endpoint events idempotently by event ID', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/events';
const payload = Buffer.from(
JSON.stringify({
agentId: 'nas-main',
endpoint: {
observedAt: '2026-07-22T01:02:04.000Z',
publicIpv4: '8.8.8.8',
publicPort: 45000,
validUntil: '2026-07-22T01:04:04.000Z',
},
eventId: 'event-1',
mappingId: '100',
occurredAt: '2026-07-22T01:02:05.000Z',
revision: 7,
schemaVersion: 1,
type: 'published',
}),
);
await harness.service.consumeMessage(topic, payload);
await harness.service.consumeMessage(topic, payload);
expect(harness.histories).toHaveLength(1);
expect(harness.publishCommitted).toHaveBeenCalledTimes(1);
expect(harness.publishCommitted).toHaveBeenCalledWith('events');
});
/** Proves liveness persistence does not become a periodic browser refresh. */
it('suppresses Admin events for status heartbeat-only timestamp renewal', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/status';
const status = (observedAt: string, online = true) =>
Buffer.from(
JSON.stringify({
agentId: 'nas-main',
observedAt,
online,
schemaVersion: 1,
startedAt: '2026-07-22T01:00:00.000Z',
version: '0.1.0',
}),
);
await harness.service.consumeMessage(
topic,
status('2026-07-22T01:01:00.000Z'),
);
harness.publishCommitted.mockClear();
const savesBeforeHeartbeat = harness.stateSave.mock.calls.length;
await harness.service.consumeMessage(
topic,
status('2026-07-22T01:02:00.000Z'),
);
expect(harness.state.lastHeartbeatAt?.toISOString()).toBe(
'2026-07-22T01:02:00.000Z',
);
expect(harness.stateSave).toHaveBeenCalledTimes(savesBeforeHeartbeat + 1);
expect(harness.publishCommitted).not.toHaveBeenCalled();
expect(harness.requestDdnsReconcile).not.toHaveBeenCalled();
await harness.service.consumeMessage(
topic,
status('2026-07-22T01:03:00.000Z', false),
);
expect(harness.publishCommitted).toHaveBeenCalledTimes(1);
expect(harness.publishCommitted).toHaveBeenCalledWith('status');
expect(harness.requestDdnsReconcile).not.toHaveBeenCalled();
});
/** Proves only public IPv6 semantic changes wake automatic DDNS. */
it('requests DDNS reconciliation for IPv6 changes but not identical heartbeats', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/status';
const status = (observedAt: string, publicIpv6: string) =>
Buffer.from(
JSON.stringify({
agentId: 'nas-main',
observedAt,
online: true,
publicIpv6,
schemaVersion: 1,
startedAt: '2026-07-22T01:00:00.000Z',
version: '0.1.0',
}),
);
await harness.service.consumeMessage(
topic,
status('2026-07-22T01:01:00.000Z', '2409:8a31::1'),
);
expect(harness.requestDdnsReconcile).toHaveBeenCalledTimes(1);
harness.requestDdnsReconcile.mockClear();
await harness.service.consumeMessage(
topic,
status('2026-07-22T01:02:00.000Z', '2409:8a31::1'),
);
expect(harness.requestDdnsReconcile).not.toHaveBeenCalled();
await harness.service.consumeMessage(
topic,
status('2026-07-22T01:03:00.000Z', '2409:8a31::2'),
);
expect(harness.requestDdnsReconcile).toHaveBeenCalledTimes(1);
});
it('accepts a same-instance LWT without regressing heartbeat and ignores an old-instance LWT', async () => {
const harness = createHarness();
const topic = 'kt/network/v1/agents/nas-main/status';
harness.state.online = true;
harness.state.startedAt = new KtDateTime('2026-07-22T01:00:00.000Z');
harness.state.lastHeartbeatAt = new KtDateTime('2026-07-22T01:10:00.000Z');
const sameInstanceWill = Buffer.from(
JSON.stringify({
agentId: 'nas-main',
observedAt: '2026-07-22T01:00:00.000Z',
online: false,
schemaVersion: 1,
startedAt: '2026-07-22T01:00:00.000Z',
version: '0.1.0',
}),
);
await harness.service.consumeMessage(topic, sameInstanceWill);
expect(harness.state.online).toBe(false);
expect(harness.state.lastHeartbeatAt?.toISOString()).toBe(
'2026-07-22T01:10:00.000Z',
);
harness.state.online = true;
harness.state.startedAt = new KtDateTime('2026-07-22T02:00:00.000Z');
harness.state.lastHeartbeatAt = new KtDateTime('2026-07-22T02:10:00.000Z');
await harness.service.consumeMessage(topic, sameInstanceWill);
expect(harness.state.online).toBe(true);
expect(harness.state.startedAt?.toISOString()).toBe(
'2026-07-22T02:00:00.000Z',
);
expect(harness.publishCommitted).toHaveBeenCalledTimes(1);
expect(harness.publishCommitted).toHaveBeenCalledWith('status');
});
});